| Canalex Ltd | Information & communication | 2018 |
| Cannon Limited | Water & waste | 2006 |
| Cansi Trading Ltd | Wholesale & retail | 2025 |
| Canxin Trading Ltd | Wholesale & retail | 2025 |
| Canyton Limited | Wholesale & retail | 2025 |
| Captain Tolley Limited | Manufacturing | 1986 |
| Carpenter Goodwin Limited | Wholesale & retail | 1995 |
| Cehan Trading Ltd | Wholesale & retail | 2025 |
| Chameleon Resolutions Ltd | Extraterritorial | 2003 |
| Chamelevir Trading Limited | Wholesale & retail | 2023 |
| Chane Trading Ltd | Wholesale & retail | 2025 |
| Changmeng Trading Ltd | Wholesale & retail | 2025 |
| Chaozhou Xuyu Art Ceramic Co., Ltd | Administrative & support | 2023 |
| Charterhouse Portfolio Management Limited | Financial services | 2001 |
| Chengbin Trading Ltd | Wholesale & retail | 2025 |
| Chengli Trading Ltd | Wholesale & retail | 2025 |
| Chengsheng Trading Ltd | Wholesale & retail | 2025 |
| Chengwo Trading Ltd | Wholesale & retail | 2025 |
| Chengyi Trading Ltd | Wholesale & retail | 2025 |
| Chenren Trading Ltd | Wholesale & retail | 2025 |
| Chenziyan Ltd | Wholesale & retail | 2025 |
| Chibai Trading Ltd | Wholesale & retail | 2025 |
| Chibang Trading Ltd | Wholesale & retail | 2025 |
| China Trading Ltd | Wholesale & retail | 2026 |
| Chinnofi Pharmaceutical Machinery Co Ltd | Administrative & support | 2024 |
| Chiwei Trading Ltd | Wholesale & retail | 2025 |
| Chiyun Trading Ltd | Wholesale & retail | 2025 |
| Chuangyu Trading Ltd | Wholesale & retail | 2025 |
| Chuanquan Trading Ltd | Wholesale & retail | 2025 |
| Chunmei Foreign Trade Ltd | Wholesale & retail | 2025 |
| Church Street (Kington) Limited | Real estate | 2001 |
| CK ENG Trading Ltd | Wholesale & retail | 2025 |
| Cloud Peak Group Limited | Information & communication | 2025 |
| Cloudthink Tech Ltd | Administrative & support | 2025 |
| Cockett & Co. Limited | Professional & scientific | 2006 |
| Code Fire Trading Ltd | Wholesale & retail | 2025 |
| Coed Major Limited | Mining & quarrying | 1999 |
| Country Buildings Limited | Extraterritorial | 2003 |
| Court Meadow Residents Association Limited | Households | 2003 |
| Courtline Properties Limited | Hospitality | 1996 |
| Cozk Limited | Wholesale & retail | 2025 |
| Crantock Limited | Information & communication | 1997 |
| Craven Grain (Services) Limited | Agriculture & fishing | 1980 |
| Craycombe Limited | Professional & scientific | 2008 |
| Creation Pet Supply Ltd | Wholesale & retail | 2025 |
| Cross Sphere Trade Ltd | Wholesale & retail | 2025 |
| Crownpeak Global Ltd | Wholesale & retail | 2025 |
| Cuckooz ZC Ltd | Wholesale & retail | 2024 |
| Cuyk Trading Ltd | Wholesale & retail | 2026 |
| Czychen Ltd | Wholesale & retail | 2025 |
| D L T Waste Water Treatment Ltd | Water & waste | 2007 |
| D. and J. Hitchings (Machinery) Limited | Wholesale & retail | 1973 |
| D. R. M. (Bromyard) Limited | Transport & logistics | 2007 |
| D.W.L. Hygiene Systems Limited | Professional & scientific | 2007 |
| Dahong Trading Ltd | Wholesale & retail | 2025 |
| Danter Attractions Limited | Arts & recreation | 2000 |
| Daoxing Trading Ltd | Wholesale & retail | 2025 |
| Davenport Property Company Limited | Real estate | 1998 |
| Day One Christian Ministries | Information & communication | 1931 |
| Deficit Technology Ltd | Wholesale & retail | 2025 |
| Delphic Computer Services Limited | Energy | 1991 |
| Delta-Star Properties Limited | Real estate | 2005 |
| Deltamedicare Ltd | Health & social care | 2023 |
| Detian Trading Ltd | Wholesale & retail | 2025 |
| Dexinwang Trading Limited | Wholesale & retail | 2024 |
| Dianpin Technology Ltd | Wholesale & retail | 2025 |
| Didao Trading Ltd | Wholesale & retail | 2025 |
| Dingbai Trading Ltd | Wholesale & retail | 2025 |
| DJP Contractors Limited | Construction | 2006 |
| Dkdl Hullwood Limited | Other services | 2003 |
| Dongan Trading Ltd | Wholesale & retail | 2025 |
| Donghui Trade Ltd | Wholesale & retail | 2024 |
| Dongte Trading Ltd | Wholesale & retail | 2025 |
| Dongxin Trading Ltd | Wholesale & retail | 2025 |
| Dongxing Trading Ltd | Wholesale & retail | 2025 |
| Doudou Media Network Limited | Wholesale & retail | 2025 |
| Downtoearth Ltd | Professional & scientific | 2024 |
| DR Daniel Williams Ltd | Health & social care | 2022 |
| Dragon in Trade Ltd | Wholesale & retail | 2024 |
| Drang Ltd | Wholesale & retail | 2024 |
| Drawline Limited | Professional & scientific | 2018 |
| Dream Tokoona Limited | Wholesale & retail | 2025 |
| Duixiu Trading Ltd | Wholesale & retail | 2025 |
| Dumb Trade Ltd | Wholesale & retail | 2025 |
| Dunfield House Limited | Hospitality | 1999 |
| E.L.Lewis & SON | Agriculture & fishing | 1960 |
| East Trade Group Co., Ltd | Administrative & support | 2023 |
| Eastern Airlines Trading Co., Ltd | Wholesale & retail | 2023 |
| Eastholme Court Management Limited | Households | 1987 |
| Eastmead Management Company Limited | Households | 2017 |
| Eastnor Castle Estates Company Limited | Agriculture & fishing | 1940 |
| Education Property Partnership Limited | Construction | 2012 |
| Eight SIX Trading Ltd | Wholesale & retail | 2024 |
| English Salvage Ltd | Wholesale & retail | 2004 |
| Erasmus Inns Limited | Hospitality | 2007 |
| Eurobridge Global Ltd | Wholesale & retail | 2025 |
| Evergrande Entertainment Media Limited | Wholesale & retail | 2025 |
| Evergreen Vista Ltd | Wholesale & retail | 2025 |
| Everlink Trading Ltd | Wholesale & retail | 2025 |
| Expedio Virtual Assistance Limited | Information & communication | 2007 |